![](https://appel.nasa.gov/wp-content/uploads/2006/07/GPB_SV2-670x380.jpg)
Gravity Probe B: Testing Einstein … with a Management Experiment?
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By Edward S. Calder and Bradley T. Jones Gravity Probe B (GP-B) has been called the most sophisticated object ever placed in space.
By Edward S. Calder and Bradley T. Jones Gravity Probe B (GP-B) has been called the most sophisticated object ever placed in space.